<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card class="box-card">
      <div slot="header" class="clearfix">
        <span>卡片名称</span>
        <el-button style="float: right; padding: 3px 0" type="text"
          >返回上一次页面</el-button
        >
      </div>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="AddUserdialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              active-color="#13ce66"
              active-value="100"
              inactive-value="0"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="delUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色按钮"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="showSetRoleDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>

      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="AddUserdialogVisible"
        width="50%"
        :before-close="handleClose"
        @close="addDialogClosed"
      >
        <!-- 内容主题区域 -->
        <el-form
          ref="addFormRef"
          :model="addForm"
          label-width="70px"
          :rules="addFormRules"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="AddUserdialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 修改用户的对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editUserdialogVisible"
        width="50%"
        :before-close="handleClose"
      >
        <!-- 内容主题区域 -->
        <el-form
          ref="editFormRef"
          :model="editForm"
          label-width="70px"
          :rules="editFormRules"
          @close="editDialogClosed"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="editUserdialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoledialogVisible"
        width="50%"
        :before-close="handleClose"
        @close="setRoleDialogClosed"
      >
        <div>
          <p>当前的用户: {{ userInfo.username }}</p>
          <p>当前的角色: {{ userInfo.role_name }}</p>
          <p>
            分配新角色：
            <el-select v-model="selectRoleId" filterable placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>

        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoledialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo"
            >确 定</el-button
          >
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 合法手机号
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }
    return {
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示的数据
        pagesize: 2
      },
      // 用户列表
      userlist: [],
      // 数据总数
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      AddUserdialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', tirgger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', tirgger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', tirgger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', tirgger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', tirgger: 'blur' },
          { validator: checkEmail, tirgger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', tirgger: 'blur' },
          { validator: checkMobile, tirgger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editUserdialogVisible: false,
      // 修改用户表单数据
      editForm: {},
      // 修改表单验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', tirgger: 'blur' },
          { validator: checkEmail, tirgger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', tirgger: 'blur' },
          { validator: checkMobile, tirgger: 'blur' }
        ]
      },
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 控制分配角色对话框的显示与隐藏
      setRoledialogVisible: false,
      // 已经选中的角色id值
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 switch 开关状态的改变
    async userStateChange(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },

    // 确认 添加用户或修改用户对话框 关闭
    handleClose(done) {
      this.$confirm('确认关闭？')
        .then(_ => {
          done()
        })
        .catch(_ => {})
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) this.$message.error('添加用户失败！')
        this.$message.success('添加用户成功！')
        this.AddUserdialogVisible = false
        this.getUserList()
      })
    },
    // 展示编辑用户对话框框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editUserdialogVisible = true
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 点击按钮，修改用户
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户的网络请求
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 200) return this.$message.error('修改用户失败')
        this.$message.success('修改用户成功')
        // 关闭对话框
        this.editUserdialogVisible = false
        // 刷新数据列表
        this.getUserList()
      })
    },
    // 根据id删除用户
    delUserById(id) {
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(async () => {
          const { data: res } = await this.$http.delete('users/' + id)
          if (res.meta.status !== 200) {
            this.$message({
              type: 'error',
              message: '删除用户失败!'
            })
          }
          this.$message({
            type: 'success',
            message: '删除用户成功'
          })
          this.getUserList()
        })
        .catch(() => {
          this.$message({
            type: 'info',

            message: '已取消删除'
          })
        })
    },
    // 展示分配角色对话框
    async showSetRoleDialog(userInfo) {
      this.userInfo = userInfo

      // 在展示对话框之前，获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }

      this.rolesList = res.data

      this.setRoledialogVisible = true
    },
    // 点击保存按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    // 监听设置角色对话框关闭事件
    setRoleDialogClosed() {
      this.selectRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
.el-row {
  margin-bottom: 20px;
}
</style>
